ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,051, issued on May 20, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Power tool" was invented by Hanqing Zheng (Nanjing, China) and Xiangqing Fu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool includes a main housing in which a drive mechanism is disposed and a working head connected to an end of the main housing and rotating relative to the main housing about a first axis. The working head includes an output shaft and the output shaft is driven by the drive mechanism to rotate about a second axis. The main housing is provided with a window portion and the window portion is configured to display an ...